From efbd7c7840f01f6479fb0224ff473c3166eee669 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Fri, 23 Jul 2021 13:42:52 +0200
Subject: [PATCH] GCC did not support -mtune for ARM64 before 5.1

---
 Makefile.arm64 | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Makefile.arm64 b/Makefile.arm64
index c23a0876e..2656a17f9 100644
--- a/Makefile.arm64
+++ b/Makefile.arm64
@@ -1,4 +1,15 @@
 ifneq ($(C_COMPILER), PGI)
+
+ifneq ($(GCCVERSIONGT4), 1)
+CCOMMON_OPT += -march=armv8-a
+ifneq ($(F_COMPILER), NAG)
+FCOMMON_OPT += -march=armv8-a
+endif
+
+
+else 
+
+
 ifeq ($(CORE), ARMV8)
 CCOMMON_OPT += -march=armv8-a
 ifneq ($(F_COMPILER), NAG)
@@ -138,4 +149,7 @@ FCOMMON_OPT += -march=armv8-a -mtune=emag
 endif
 endif
 endif
+
 endif
+
+endif
\ No newline at end of file